RR 25 Peak Notch Filter

We use the State Variable Filter in Thor for the PeakNotch_Filter.cmb patch.

Button4 toggles between Notch and Peak mode. The other modes are not used.

Rotary4 controls the LP/HP Rotary on the State Variable Filter.

Again, Button1 enables the inversed audio signal. When enabled, Notch becomes a BP filter and Peak a notch filter. We’ve run out of buttons on the Combinator so there’s no control for self-oscillation.